Description
One chainring, endless possibilities. The Topstone 3 GRX - 1X delivers simplicity without sacrificing performance. A Shimano GRX610/820 blend
Rear Derailleur-Shimano GRX 822, Shadow SGS
Shifters-Shimano GRX 610, 12-speed
Chain- Shimano M7100, 12-speed
Brakes- Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
Rims-WTB ST i25 TCS, 28h, tubeless ready